Home / 276,120.95-381,039.34-155,259.13

Finding the Fourth Proportional to 276,120.95, 381,039.34 and 155,259.13

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Solution

The fourth proportional to 276,120.95, 381,039.34 and 155,259.13 is: 214,253.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,120.95 : 381,039.34 = 155,259.13 : x
  2. Step 2: Convert to fraction form
    276,120.95/381,039.34 = 155,259.13/x
  3. Step 3: Cross multiply
    276,120.95x = 381,039.34 × 155,259.13
  4. Step 4: Simplify right side
    276,120.95x = 59,159,836,088.99
  5. Step 5: Solve for x
    x = 59,159,836,088.99/276,120.95
  6. Step 6: Final answer
    x = 214,253.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.